Presser plate for tape dispensing machines



July 23, 1940. L, w. GOLDsTElN 2,209,266

PRESSER PLATE FOR TAPE DISPENSING MACHINES original Filed July 18, 19:59

l. l I 674 7/ 6,07# 1 H I i 48 49 50 4746 fk5 l i 44 l 3mm Lewa Wyollzn 44 2 0/4// M34 55 Patented July 23, 1940 y l i UNITED .STATES rATENT NoFFlcla:

PRESSER PLATE FOR TAPE DISPENSING MACHINES Lewis W. Goldstein, New York, N.,Y., assignor to Lipton` Manufacturing Co., Inc., New York, N. Y.

Original application July 18, 1939, Serial No.

285,153. Divided and this application September 18, 1939, Serial No. 295,536

i claims. (o1. .9i- 38) This invention relates to tape dispensing and Figure 3 is an enlarged fragmentary sectional moistening machines and is a division of my co- View taken on the lineg3-3 of Figure 1, and y pending application, Serial No. 285,153 filed July Figure 4 is an enlarged fragmentary sectional 18, 1939, now Patent No. 2,175,959, which issued view taken on the line 4- -4 of Figure 1.

5 October l0, 1939. Referring to the drawing numeral I8 desigl An object of this invention is to provide an nates generally a housing structure including a improved tape guiding means for adispensing pair of vertical side walls I I and a cover I2 promachine which is so constructed that the tape vided with depending fianges I3 on the opposite may freely move along the guiding table provided longitudinal ,edges Viibele'f Wiliei'l are adapted t0 l in the machine 1 engage over the side walls II. A.A tape feeding 10 Another object of this invention is to provide Wheel I4 is` rotatably carried by a drive shaft I5 an improved presser plate engaging 4over the tape which is journaled through the side walls I-I guiding table and also engaging the upper end of and the feeding wheel I4 is progressively roa tape moistening brush to frictionally hold the tated in one direction by means of a ratchet l5 gmnmed Side of ,the tape in contact with the member I6 Which iS `lXed. ISO the Shaft I5. A 15 brush, spring pressed pawl Il is carried by the wheel Another object of this linvention is to provide I4 and engages the ratchetY I6. A shaft return'- an improved presser means including a plate ening lever I8 is fixed t0 the' shaft l5 and is adaptgaging over the tape guiding table and means for ed to abut against a stop member I9 carried by adjustably holding the presser plate relative to a support 2li which is Xed to one sidewall II of B0 the guiding table and to the moistening element the housing Ill. The lever I8 is Constantly urged disposed at the forward'end of the guiding table. in the direction of the stop member i9 by means A further object of this invention is to provide 0f a lever return spring 2I. an improved guiding plate positioned rearwardly A knife vCarrier 22 is slidable in guide members of the tape severing"meansV which may be fixedly 23 Carried by the Side Walls Il 011 the infiel Side 25 secured in adjusted position relative tothe guidthereof and is constantly urged to an uppermost ing table so that theztape may freely move thereinoperative position by means of a spring 24 tenbeneath, sioned by means of a screw 25. The carrier 22 A still further object. of this. invention is to has a blade 26 detachably secured thereto bv fas 30, provide an improvedholding means for a presser tening devices 21 and the carrier 26 includes ver- 30 plateV including a yieldable clamping memiber tieally disposed slots 23 within which the free which is adapted to engage the vertical guides for ends of carrier operating levers 29 looselt7 engage. the presser plate iny order to hold the presser The lower end of the carrier 26 includes a transplate in vertically adjusted position relative to Versely disposed bar 3B Which iS engaged by eaeh the tape guiding table and to the moistening elelevel 29 Orlr downward IOeking 0f a lever 29 So 35 ment positioned at the v,forward end of the table. aS t0 mOVe the CaIIei 25 CIOWYlWaYdly t0 ail Opera- Embodying the foregoing aims and to Aothers tive position. Each lever 29 is pivotally mounted which may hereinafter appear, the invention vcon- 0H a Stub Shaft 3| Gai'led by Side Wall II and sists of the novel construction',combination .and @30h level' 29 iS PYOVidedWith an eXtensiOn or 4,0 arrangement of parts as will be more specioally trigger 32 extending rearwardly of the stub shaft 40 referred to and illustrated in the accompanying 3|- The tripping member 33-iS DTOVded fOr each drawing, wherein are shown embodiments of the lei/er 2.9 an@ 1S xefly mounted on th? Shaft l5: invention, but it isto be understood that changes,` Th? 1109511@ in mClld-es a Pape gudl'ng table Variations and modcations may bef resorted to 34 which 1s provided with a pair of longitudmally which fall within the scope of the invention as extendlng r1bs 35 and the feeding Wheel.' M 1S 45 Claimed. i v adapted to project through a slot provided 1n the In the drawing: table 34 for engagement with the tape moving over the table 34. A serrated idler feeding wheel Flgure 1 1S a fragmentary longltudmal Eectlon 36 is carried by a shaft 31 and a spring 38 mountof a tape dispensingandmoistening maehme em' ed on a bar 39 constantly urges the feeding wheel 50 bodylng my liVelli'llOn, n 36 downwardly into engagement with the tape T Figure 2 is a fragmentary top plan partly bropassing yover the table 34 ken away and in section of the forward end of A presser plate generally designated as 40 is the machine, the cover ofthe machine being redisposed on the rear side of the carrier 22 and moved, comprises@ pIateLQaYue ardowuward oiset portion 42 extending downwardly between guiding ribs 35,. The outer portions 43 of the plate 4| are adapted to engage on the upper surfaces of the guiding ribs when the 4D is in its lowermost position.

The vplate 4is provided at each sidethereof with a pair of trunnions or slide members 44 enpresser plate gaging betweena pair of vertically disposed guide: members 45 which are carried by the side walls l In 'l .The plate 40 adjacentthe rear*` thereof is provided with an upwardly projecting body 46 Ihaving, a channel 41 extending transverselyy of theplate 46. e A longitudinally curved clampingl member 48 is adapted to be disposed in inverted position with the opposite ends thereof engaging in the channel 4l and this clamping member 46zis preferably formed of resilient material'such as a bowed spring which at the` opposite ends thereofulie adapted to engage the inner surface of the vertical guides 48 so as tohold the presser plate 4 0 in' vertically adjusted position relative to the table- 34. The springer clampingmember '48' is tensioned by means of 'a threaded tensioning member 49 which is threaded into the body 46 and is provided with a knurled head 50. v

The housing I6 at its forward'or discharge end is `provided with a receptacle 5I in which a mois- `teni'n'g brush 52 engages.

brush 52 are adapted to project upwardly above v The bristles' of ''.th'e

' providing a'slot or opening 54 between the two table members 34 and4 53. PreferablyA the rear end of the table 53 is downwardly "offset as at 55` to formv a mouth for the freeY end 'ofthe tapeT,

The table 53 is provided on the opposite .longitudinal edges'thereof with a pair of upwardly projecting ribs 56 and preferably 'the upper surface of the table 53 is also longitudinallyv ribbed as at j 51. VThe'forward end of the" table 53 is upwardly l curved as at 58 and the rear., portion of the brush 52 engages the upwardly curved portion 58 of the table 53. v il j j A vertically adjusted pressurevplate 'generally designated as 59 is disposed lover the tableV 53 and comprises a fiat bodyor plate 60 havinganiupwardl'yv curved rear portion' 6l which forms ywith the downwardly offset portion 5,5 a Vmouth 62. which is ared rearwardly and within vwhich the end of the tape T is adapted to be received. A Thel forward end ofthe plate member 59 includesan upwardly and obtusely inclinedH portion 63 terminating 'in the downwardly curved portion 64. The outer portion of the straightrobtuseportion 63 engages over the upper vend of the brush 52 and in like manner the ldownwardly curved portion 64 engages over the upper end ofthe brush A vertically disposedslidemember cwi-'plate 65 formed with the plate 60 and at the opposite ends thereof projects beyond the longitudinal edges of the plate 60`as shown in Figure 2. Theselprojecting portions 66 sl'idably engagenin a pair'of vertically disposed guide members 61 whieharefcarried byk each side wall Il and which extend upwardly `fro1nthetable53. In order toprovide a means whereby the plate member 59 may be held in vertically adjusted position relative tothe table 58, I have provided a longitudinally curvfed resilient clamping member 68 which is .disposed on the forward side o f the plate or guide memberh65 and is Yformed of resilientpmaterial. A clamping screw` 69 f provided with'aknurled head 10 engages thel through the center of the clamp 68 and is thread-Y ed into the plate 65.

clamping screw 10 will distort the clamping mem- Inward movement of the ber 68 so that the opposite ends thereof will bind against one of the guide members 6l on each side of the housing l0. In the lowermost position the presser plate 59 will engagefonI the longitudinal Aribs 56 as shown in Figure 3. However, the press- -er member 59if desired may be raised upwardly from the ribs 56 in the event too much pressure vThe lower edgeof the clamping member 68 is adapted to'engage the upper ends of the lugs ll. 'A centrally disposed bracing member l2 is carried y willfbe applied to the tape when the presser memf by the plate 60 forwardly of the plate 65 and ter- `minates in fthe upper extension 63 as shown in Figures 1A and 2. A rear bracing member -13 is carried by the plate 60 in alignment with the bracing member 12'and extends from the rear side of the plate 65'and terminates in the upwardly curved member 6|.

In the use of this improved structure the rear presser plate 40 is secured `over the table 34 rearwardy of the knife carriage 22, the vertical position of the presser member 40 being adjusted by means of the clamping member `48 kand the tensioning screw 49. Under' certain conditions, namely when the thickness of the tape T and the adhesive carried thereby will permit the tape T to readily slide beneath the plate 40, this plate may have the outer portions 43 thereof resting on the llongitudinal ribs 35. However, in the event ythe thickness of the tape and the adhesive carried thereby will not permit the tape to readily.

pass beneath the'pressermember 40 this member may vbe vertically raised' by loosening the kscrew 49r and clampingthe plate 40 .in a position upwardlyfrom the ribs y35. lThis plate40 forms withv` the table 34 a 'relatively narrow or'thin guideway within whichv the tape T sadapted to move. .When the feeding wheel I4 has been tur-ned forwardly to feed the tape'throughthe knife carriage 22 the'free end of the tape will enter the mouth 62 between the upwardly projectingy lip 6I and the downwardly offset lip 55. This free'end of the tape `will then pass in the guideway formed between the rpresser member 59l and the table 5,3. The free end of the ltape will be forced between theiupper end of the moistening brushv 52 and the extensions 63 and 64of the plate member 60. The presser member 59 maybe adjusted in the samemanner as the presser member 40, that is" loosening of theA clamping member 68 will permit vertical adjustment of the presser member 59 relative to the table `53 and to the moistening brush 52. By having-an adjustable presser member 59 which is vertically adjustable this presser member may be readily adjusted to provide the necessaryv pressurel between the gummed side of the tape Tand the brush 52 in order that a sufficient quantity of moisture or water will come in contact with the gummed surface of the tape. Under vcertain conditions the tape T is readily gummed by having only-a very` light pressure between the tape v and the moistening brush andunder, other conditions it is necessary to have an additional amounti of pressureon the tape in order that the gummed side thereof will be moistened suliciently so that lthe tape will readily adhere to the article to which it is to be applied.

In tape dispensing machines at present available it is the general practice to have a presser plate over the moistening element which is pivoted to the housing and gravitatingly holds the tape in contact with the moistening element. However, with a construction of this kind the amount of pressure which may be applied to the tape cannot be varied without changing the pivoted presser member and in other respects this type of presser plate has been found unsatisfactory. With a construction as hereinbefore described the pressure exerted on the tape to frictionally hold the tape in contact with the moistening element may be readily and quickly varied by the user of the device so that the user of the device can have any desired amount of moisture applied to the tape which is considered necessary or desirable. Where the brush 52 is new and the bristles are straight the presser member 59 may be initially raised from the table 53, but as the bristles of the brush 52` wear down or bend over the presser member 59 may be easily and quickly lowered so that a uniform pressure will be applied to the tape irrespective of the condition of the moistening element.

By having the two presser members 40 and 59 mounted in guideways carried by the side walls of the housing these members may be easily and quickly removed where it is considered necessary without aiecting the position or arrangement of the other parts of the machine.

What I claim is:

l. In a tape dispensing machine, a housing including parallel side walls, a tape guiding table between said Walls, a tape moistening member at on end of said table, a presser plate engaging over said table and having a portion thereof engaging said moistening means, an upwardly projecting part fixed to said plate, a resilient bowed clamping member engaging said part, and a threaded tensioning member engaging through said clamping member and threaded into said part for tensioning the opposite ends of said clamping member against said walls to thereby hold said plate in adjusted position relative to said table and said moistening member.

2. In a tape dispensing machine, a housing including parallel side walls, a tape guiding table between said walls, a tape moistening member at one end of said table, a presser plate engaging over said table, said plate including an arcuate end portion overlying said member, vertical guides carried by said side walls, an upwardly projecting -part carried by said plate, the opposite ends of said part projecting laterally of said plate and slidably engaging said guides, a resilient bowed clamping member, and a tensioning member for said clamping member, the opposite ends of said clamping member engageable with said guides for holding said plate in adjusted position relative to 4said table and said moistening member.

3, In a tape dispensing machine, a housing, having parallel side walls, a tape guiding table,

a tape moistening member disposed relatively to said table, a presser plate engaging over said table forwardly of said slot and also engaging said moistening member, said plate comprising a flat body, an upwardly curved rear portion integral with said body forming a tape guiding mouth, a downwardly curved forward portion integral with said body engaging over said moistening member, guides carried by said walls, a vertical part rising from said body and projecting laterally of the longitudinal edges of said body, said projecting portions of said part slidably engaging said guides, a bowed resilient clamping member having the concave side thereof confronting said part, and a threaded tensioning'member engaging through said clamping member and threaded into said part for disposing the opposite ends of said clamping member into contacting engagement with said guides to thereby hold said plate in adjusted position relative to said table.

1l. In a tape dispensing machine provided with a housing having parallel side Walls, a tape guiding table and a tape moistening member at the discharge end of the table; a tape presser plate for holding the tape in contact with said'member, said plate comprising a flat body disposed between the side walls, an arcuate upturned part at one end of said body, a flat obtusely inclined part at the opposite end of said body, a portion of said latter part engaging a portion of said moistening member, a down-turned part carried by said obtusely inclined part engaging another portion of said moistening member, and tensionable holding means carried by said body engageable with said side walls to adjustably secure said body relative to said table and said moistening member.

LEWIS W. GOLDSTEIN. 

